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?RCS: $Id: Extensions.U,v$
?RCS:
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 3.0.
?RCS:
?RCS: $Log: Extensions.U,v $
?RCS:
?MAKE:known_extensions extensions dynamic_ext static_ext useposix : \
Myread usedl d_socket i_db i_dbm i_ndbm i_gdbm package test cat
?MAKE: -pick add $@ %<
?S:known_extensions:
?S: This variable holds a list of all extensions included in
?S: the package.
?S:.
?S:dynamic_ext:
?S: This variable holds a list of extension files we want to
?S: link dynamically into the package. It is used by Makefile.
?S:.
?S:static_ext:
?S: This variable holds a list of extension files we want to
?S: link statically into the package. It is used by Makefile.
?S:.
?S:extensions:
?S: This variable holds a list of all extension files
?S: linked into the package. It is propagated to Config.pm
?S: and is typically used to test whether a particular extesion
?S: is available.
?S:.
?S:useposix:
?S: This variable holds either 'true' or 'false' to indicate
?S: whether the POSIX extension should be used. The sole
?S: use for this currently is to allow an easy mechanism
?S: for hints files to indicate that POSIX will not compile
?S: on a particular system.
?S:.
?T:xxx yyy avail_ext
?INIT:: set useposix=false in your hint file to disable the POSIX extension.
?INIT:useposix=true
echo " "
echo "Looking for extensions..." >&4
cd ../ext
: If we are using the old config.sh, known_extensions may contain
: old or inaccurate or duplicate values.
known_extensions=''
: We do not use find because it might not be available.
: We do not just use MANIFEST because the user may have dropped
: some additional extensions into the source tree and expect them
: to be built.
for xxx in * ; do
if $test -f $xxx/$xxx.xs; then
known_extensions="$known_extensions $xxx"
else
if $test -d $xxx; then
cd $xxx
for yyy in * ; do
if $test -f $yyy/$yyy.xs; then
known_extensions="$known_extensions $xxx/$yyy"
fi
done
cd ..
fi
fi
done
set X $known_extensions
shift
known_extensions="$*"
cd ../UU
: Now see which are supported on this system.
avail_ext=''
for xxx in $known_extensions ; do
case "$xxx" in
DB_File) case "$i_db" in
$define) avail_ext="$avail_ext $xxx" ;;
esac
;;
GDBM_File) case "$i_gdbm" in
$define) avail_ext="$avail_ext $xxx" ;;
esac
;;
NDBM_File) case "$i_ndbm" in
$define) avail_ext="$avail_ext $xxx" ;;
esac
;;
ODBM_File) case "$i_dbm" in
$define) avail_ext="$avail_ext $xxx" ;;
esac
;;
POSIX) case "$useposix" in
true|define|y) avail_ext="$avail_ext $xxx" ;;
esac
;;
Socket) case "$d_socket" in
$define) avail_ext="$avail_ext $xxx" ;;
esac
;;
*) avail_ext="$avail_ext $xxx"
;;
esac
done
set X $avail_ext
shift
avail_ext="$*"
case $usedl in
$define)
$cat <<EOM
A number of extensions are supplied with $package. You may choose to
compile these extensions for dynamic loading (the default), compile
them into the $package executable (static loading), or not include
them at all. Answer "none" to include no extensions.
EOM
case "$dynamic_ext" in
''|' ') dflt="$avail_ext" ;;
*) dflt="$dynamic_ext" ;;
esac
case "$dflt" in
'') dflt=none;;
esac
rp="What extensions do you wish to load dynamically?"
. ./myread
case "$ans" in
none) dynamic_ext='' ;;
*) dynamic_ext="$ans" ;;
esac
case "$static_ext" in
''|' ')
: Exclude those already listed in dynamic linking
dflt=''
for xxx in $avail_ext; do
case " $dynamic_ext " in
*" $xxx "*) ;;
*) dflt="$dflt $xxx" ;;
esac
done
set X $dflt
shift
dflt="$*"
;;
*) dflt="$static_ext"
;;
esac
case "$dflt" in
'') dflt=none;;
esac
rp="What extensions do you wish to load statically?"
. ./myread
case "$ans" in
none) static_ext='' ;;
*) static_ext="$ans" ;;
esac
;;
*)
$cat <<EOM
A number of extensions are supplied with $package. Answer "none"
to include no extensions.
EOM
case "$static_ext" in
''|' ') dflt="$avail_ext" ;;
*) dflt="$static_ext" ;;
esac
case "$dflt" in
'') dflt=none;;
esac
rp="What extensions do you wish to include?"
. ./myread
case "$ans" in
none) static_ext='' ;;
*) static_ext="$ans" ;;
esac
;;
esac
set X $dynamic_ext $static_ext
shift
extensions="$*"
|
